/* ==========================================================================
   Emmanuel Billon — feuille de style
   Palette ivoire / serif éditorial. Site statique classique.
   ========================================================================== */

/* Police hébergée sur le domaine : aucun appel à Google Fonts
   (plus rapide, et conforme au RGPD — aucune IP visiteur transmise à un tiers). */
@font-face{
  font-family:'EB Garamond';font-style:normal;font-weight:400;font-display:swap;
  src:url('fonts/ebgaramond-400.woff2') format('woff2');
}
@font-face{
  font-family:'EB Garamond';font-style:normal;font-weight:500;font-display:swap;
  src:url('fonts/ebgaramond-500.woff2') format('woff2');
}
@font-face{
  font-family:'EB Garamond';font-style:italic;font-weight:400;font-display:swap;
  src:url('fonts/ebgaramond-400i.woff2') format('woff2');
}

:root{
  --ivoire:#F4EFE6;
  --ivoire-clair:#FAF6EF;
  --encre:#2E2A22;
  --texte:#4A4436;
  --sepia:#8A7F6C;
  --trait:#C9BCA6;
  --max:960px;
}

*{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--ivoire);
  color:var(--texte);
  font-family:'EB Garamond', Georgia, 'Times New Roman', serif;
  font-size:18px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;display:block;}

a{color:inherit;text-decoration:none;}

.wrap{max-width:var(--max);margin:0 auto;padding:0 1.6rem;}
.narrow{max-width:640px;margin-left:auto;margin-right:auto;}

/* ---------- En-tête ---------- */
.site-header{
  border-bottom:0.5px solid var(--trait);
  position:sticky;top:0;z-index:50;
  background:rgba(244,239,230,0.92);
  backdrop-filter:saturate(120%) blur(6px);
}
.site-header .wrap{
  display:flex;align-items:baseline;justify-content:space-between;
  padding:1.15rem 1.6rem;gap:1rem;flex-wrap:wrap;
}
.brand{
  font-size:1.15rem;letter-spacing:0.16em;color:var(--encre);
  white-space:nowrap;
}
.nav{display:flex;gap:1.4rem;font-size:0.8rem;letter-spacing:0.08em;color:var(--sepia);flex-wrap:wrap;}
.nav a{padding-bottom:2px;border-bottom:1px solid transparent;transition:border-color .2s,color .2s;}
.nav a:hover,.nav a.active{color:var(--encre);border-color:var(--trait);}

/* ---------- Titres ---------- */
h1,h2,h3{font-weight:400;color:var(--encre);line-height:1.25;}
.display{
  font-size:2.3rem;text-align:center;margin:2.6rem 0 0;
}
.eyebrow{
  font-size:0.72rem;letter-spacing:0.24em;color:var(--sepia);
  text-transform:uppercase;text-align:center;margin-bottom:0.5rem;
}
.rule{width:44px;height:0.5px;background:var(--trait);margin:1.6rem auto;border:0;}

/* ---------- Accueil ---------- */
.hero{margin:2.4rem 0 1rem;}
.hero img{width:100%;}
.hero .cap{font-size:0.78rem;color:var(--sepia);font-style:italic;text-align:right;margin-top:8px;}
.lead{font-size:1.16rem;line-height:1.9;text-align:center;color:var(--texte);}

/* ---------- Index des séries (variante B) ---------- */
.filters{
  display:flex;flex-wrap:wrap;gap:0.5rem 1.4rem;justify-content:center;
  margin:2rem 0 2.4rem;font-size:0.78rem;letter-spacing:0.06em;color:var(--sepia);
}
.filters .group{display:flex;gap:0.7rem;align-items:baseline;flex-wrap:wrap;}
.filters .label{text-transform:uppercase;letter-spacing:0.16em;font-size:0.68rem;color:var(--trait);}
.filters button{
  background:none;border:0;color:var(--sepia);cursor:pointer;
  font-family:inherit;font-size:0.82rem;padding:2px 0;
  border-bottom:1px solid transparent;transition:color .2s,border-color .2s;
}
.filters button:hover{color:var(--encre);}
.filters button.on{color:var(--encre);border-color:var(--encre);}

.index{border-top:0.5px solid var(--trait);}
.index .row{
  display:flex;align-items:baseline;justify-content:space-between;gap:1rem;
  padding:1.15rem 0.2rem;border-bottom:0.5px solid var(--trait);
  transition:padding-left .25s,background .25s;
}
.index .row:hover{padding-left:0.9rem;background:var(--ivoire-clair);}
.index .row .l{display:flex;align-items:baseline;gap:1.2rem;min-width:0;}
.index .row .num{font-size:0.8rem;color:var(--sepia);min-width:26px;}
.index .row .ttl{font-size:1.35rem;color:var(--encre);}
.index .row .meta{font-size:0.8rem;color:var(--sepia);font-style:italic;text-align:right;flex-shrink:0;max-width:52%;}
.index .row.hidden{display:none;}

/* ---------- Page série ---------- */
.serie-head{text-align:center;margin:2.6rem 0 2.2rem;}
.serie-head .meta{font-size:0.85rem;color:var(--sepia);font-style:italic;margin-top:0.5rem;}
.serie-text{max-width:600px;margin:0 auto 3rem;font-size:1.06rem;line-height:1.9;}
.back{font-size:0.8rem;letter-spacing:0.08em;color:var(--sepia);display:inline-block;margin:1.5rem 0;}
.back:hover{color:var(--encre);}

.gallery{display:grid;grid-template-columns:1fr;gap:2.6rem;margin-bottom:3rem;}
@media(min-width:620px){.gallery{grid-template-columns:1fr 1fr;gap:2.2rem 2rem;}}
.gallery figure{margin:0;}
.gallery img{
  width:100%;cursor:zoom-in;
  box-shadow:0 1px 0 rgba(0,0,0,0.04);
  transition:opacity .2s;
}
.gallery img:hover{opacity:0.92;}
.gallery figcaption{
  font-size:0.82rem;color:var(--sepia);font-style:italic;margin-top:0.55rem;text-align:center;
}

/* ---------- Prose (bio, expo, contact) ---------- */
.prose{max-width:600px;margin:0 auto;}
.prose p{margin:0 0 1.2rem;}
.prose .quote{
  border-left:2px solid var(--trait);padding-left:1.1rem;
  font-style:italic;color:var(--encre);margin:1.6rem 0;
}
.expo-item{border-top:0.5px solid var(--trait);padding:1.2rem 0;}
.expo-item .year{font-size:0.85rem;letter-spacing:0.1em;color:var(--sepia);}
.expo-item .name{font-size:1.2rem;color:var(--encre);margin:0.2rem 0;}

/* ---------- Pied ---------- */
.site-footer{
  border-top:0.5px solid var(--trait);margin-top:3rem;
}
.site-footer .wrap{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:0.6rem;
  padding:1.5rem 1.6rem 3rem;font-size:0.78rem;color:var(--sepia);
}
.site-footer .wrap em{font-style:italic;}

/* ---------- Lightbox ---------- */
.lightbox{
  position:fixed;inset:0;background:rgba(30,27,22,0.94);
  display:none;align-items:center;justify-content:center;z-index:100;
  padding:2rem;cursor:zoom-out;
}
.lightbox.open{display:flex;}
.lightbox img{max-width:92vw;max-height:82vh;box-shadow:0 10px 50px rgba(0,0,0,0.5);}
.lightbox .lb-cap{
  position:absolute;bottom:1.4rem;left:0;right:0;text-align:center;
  color:#E7DFD1;font-size:0.9rem;font-style:italic;
}
.lightbox .lb-close{
  position:absolute;top:1.2rem;right:1.6rem;color:#E7DFD1;font-size:2rem;
  cursor:pointer;line-height:1;
}
.lightbox .lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);
  color:#E7DFD1;font-size:2.4rem;cursor:pointer;padding:1rem;opacity:0.7;user-select:none;
}
.lightbox .lb-nav:hover{opacity:1;}
.lightbox .lb-prev{left:0.6rem;}
.lightbox .lb-next{right:0.6rem;}

@media(max-width:560px){
  .display{font-size:1.8rem;}
  .index .row .ttl{font-size:1.15rem;}
  .index .row .meta{max-width:44%;}
  body{font-size:17px;}
}

/* ---------- Navigation entre séries voisines ---------- */
.voisines{
  display:flex;justify-content:space-between;gap:1rem;margin:2.5rem 0 1rem;
  border-top:0.5px solid var(--trait);padding-top:1.2rem;
  font-size:0.86rem;color:var(--sepia);letter-spacing:0.04em;
}
.voisines a:hover{color:var(--encre);}
.voisines .suiv{text-align:right;margin-left:auto;}

/* ---------- Index : ligne masquée par un filtre ---------- */
.index .row[hidden]{display:none;}
.vide-filtre{padding:1.4rem 0;text-align:center;}

/* ---------- Boutons de la lightbox (éléments <button>) ---------- */
.lightbox .lb-close,.lightbox .lb-nav{
  font-family:inherit;background:none;border:0;cursor:pointer;
}
.lightbox img{cursor:default;}
.gallery img:focus-visible{outline:2px solid var(--sepia);outline-offset:3px;}

/* ---------- Accueil : grille des séries ---------- */
.grille{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
  gap:2rem 1.6rem;margin-top:2rem;
}
.carte{display:block;}
.carte picture{display:block;overflow:hidden;background:var(--ivoire-clair);}
/* height:auto est indispensable : sans lui, l'attribut height du HTML l'emporte
   et aspect-ratio est ignoré. object-fit:contain montre chaque tableau entier,
   sans rognage — la grille reste alignée, les œuvres restent intactes. */
.carte img{
  width:100%;height:auto;aspect-ratio:4/5;object-fit:contain;
  transition:opacity .25s;
}
.carte:hover img{opacity:0.88;}
.carte .titre{
  display:block;font-size:1.05rem;color:var(--encre);margin-top:0.6rem;line-height:1.4;
}
.carte .meta{display:block;font-size:0.78rem;color:var(--sepia);font-style:italic;}